Three charges are placed in vacuum on a horizontal plane. The magnitude of charge `q_(1)` is `+8` esu. Charge `q_(2)` is situated north of `q_(1)` at a distance of 5 cm an its magnitude is `+12.5` esu. Charge `q_(3)` is at the east of `q_(1)` at a distance of 8 cm and its magnitude is `-24` esu. Determine the magnitude and direction of the force acting on the charge `q_(1)~

Answer

5 dyn ; `theta=tan^(-1).(4)/(3)`, towards south of east